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turn specific colors on or off to further pinpoint where a suspected problem may be
occurring.
Select this option to use a pull-down list of
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all available internal test patterns.
NOTE: For quicker access from your presentation, use the
key to cycle through the patterns. At the last pattern, press
to return to your presentation—or press
Use the "Freeze Image" checkbox to freeze
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(stop) the image at a single frame. This diagnostic tool is useful
if you need to examine in detail a still version of the incoming
image which may not be "freezable" at the source. For
example, in moving images it is difficult to observe artifacts
such as external deinterlacing/resizing and signal noise.
NOTE: "Freeze Image" is disabled for 3D images processed with Minimum Delay.
Select which color or colors you want to see, useful while working
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with color temperature white levels or input levels.
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NOTES: 1) It is recommended that only experienced users use the Input Levels
menu—the projector automatically optimizes input levels for all but the most unusual
of sources. 2) Always check that overall contrast and brightness settings are near 50
and that color temperature is properly set up on an internal grayscale test pattern
before attempting an input level adjustment. 3) There must be at least one white pixel
present in the image for "Auto" to work.
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This digital
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projector accepts a
wide variety of
incoming signals, many
of which are analog
signals that must be
digitized early in the
internal processing to
match the single digital
format utilized in the
projector's display
engine. During this conversion, the minimum and maximum input levels—that is, the
drives and blacklevels for each of the three colors, red, green and blue—are
automatically recognized and calibrated, ensuring that black in the incoming signal is
properly mapped to zero in the digital signal and, similarly, white in the input signal
maps to the maximum value in the digital signal. This function compensates for
variations among signal sources as well as differences in distribution systems, and
ensures that the respective digital values for black and white will be the same
regardless of whether the incoming signal is decoded video, analog RGB from a
computer, or digital HDTV, for example. With properly calibrated input levels, other
image parameters such as color temperature are simplified in operation and are
consistent from source to source.
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at any time.
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